American journal of pharmacy . ^(7/(/ Determination of Sulphuric Acid. 343 scure, to all our scientific endeavors, methods, instruments, abil-ity and chemically reasoning. One of the methods which is of the greatest importance and inpractical use all over the chemical world is the sulphur determinationby barium salts, the considerable time and ability spent to perfectthis one method alone would fully prove the correctness of thestatement above. In one of the latest Chemical News, the primeand most distinguished German chemical paper Chcni. Ztg., No. 135, POROUS CRUCIBLEABOUT NATURALSIZE RUBBER


American journal of pharmacy . ^(7/(/ Determination of Sulphuric Acid. 343 scure, to all our scientific endeavors, methods, instruments, abil-ity and chemically reasoning. One of the methods which is of the greatest importance and inpractical use all over the chemical world is the sulphur determinationby barium salts, the considerable time and ability spent to perfectthis one method alone would fully prove the correctness of thestatement above. In one of the latest Chemical News, the primeand most distinguished German chemical paper Chcni. Ztg., No. 135, POROUS CRUCIBLEABOUT NATURALSIZE RUBBER?TUBINGTOFASTENCRUCIBLE THE SO CALLEDCARBON FILTERGLASS BELL. RUBBER?STOPPER BOTTLE WITHSUCTION PUMP AS FIGT SHOWS of November 12, on page 1201, we read an article: again statingthat the problem of the absolute precipitation of the sulphuric acidwith barium salts is still problematic and requires considerable skilland comparatively an absurd length of time to obtain concordant andsatisfactory results. I therefore with pleasure can state, that through the aid of techni-cal progress we have succeeded and obtained a most charming chemi-cal device in the form of a porous clay crucible manufactured by afirm in one of the New England States, and therefore an Americanproduction of the highest esteem, and importance to the chemist, 344 Rapid Determination of Sulphuric Acid.{ Km^\^rm- because it fully eliminates the filter paper process, which is one ofthe most objectionable features in most of the chemical proceduresand analytical work of all kind, every chemist will welcome this por-ous crucible because we all know the difficulty in burning filters,


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Keywords: ., bookcentury1800, bookdecade182, booksubjectpharmacy, bookyear1829